# sourcefrog/projecteuler

Partial Clojure solution to 11

• Loading branch information...
1 parent 7150501 commit 51d7b9fd879b4aece38a8d6d3f28b665938cd6e6 committed Apr 16, 2012
Showing with 45 additions and 0 deletions.
1. +45 −0 011_sum_grid/sumgrid.clj
 @@ -0,0 +1,45 @@ +; https://projecteuler.net/problem=11 +; Martin Pool + +; In the 2020 grid below, four numbers along a diagonal line have been marked in red. + +; The product of these numbers is 26 63 78 14 = 1788696. + +; What is the greatest product of four adjacent numbers in any direction (up, down, left, right, or diagonally) in the 2020 grid? + +(use '[clojure.string :only (blank? split)]) +(use '[clojure.pprint :only (pprint)]) + +(def grid-contents-string " +08 02 22 97 38 15 00 40 00 75 04 05 07 78 52 12 50 77 91 08 +49 49 99 40 17 81 18 57 60 87 17 40 98 43 69 48 04 56 62 00 +81 49 31 73 55 79 14 29 93 71 40 67 53 88 30 03 49 13 36 65 +52 70 95 23 04 60 11 42 69 24 68 56 01 32 56 71 37 02 36 91 +22 31 16 71 51 67 63 89 41 92 36 54 22 40 40 28 66 33 13 80 +24 47 32 60 99 03 45 02 44 75 33 53 78 36 84 20 35 17 12 50 +32 98 81 28 64 23 67 10 26 38 40 67 59 54 70 66 18 38 64 70 +67 26 20 68 02 62 12 20 95 63 94 39 63 08 40 91 66 49 94 21 +24 55 58 05 66 73 99 26 97 17 78 78 96 83 14 88 34 89 63 72 +21 36 23 09 75 00 76 44 20 45 35 14 00 61 33 97 34 31 33 95 +78 17 53 28 22 75 31 67 15 94 03 80 04 62 16 14 09 53 56 92 +16 39 05 42 96 35 31 47 55 58 88 24 00 17 54 24 36 29 85 57 +86 56 00 48 35 71 89 07 05 44 44 37 44 60 21 58 51 54 17 58 +19 80 81 68 05 94 47 69 28 73 92 13 86 52 17 77 04 89 55 40 +04 52 08 83 97 35 99 16 07 97 57 32 16 26 26 79 33 27 98 66 +88 36 68 87 57 62 20 72 03 46 33 67 46 55 12 32 63 93 53 69 +04 42 16 73 38 25 39 11 24 94 72 18 08 46 29 32 40 62 76 36 +20 69 36 41 72 30 23 88 34 62 99 69 82 67 59 85 74 04 36 16 +20 73 35 29 78 31 90 01 74 31 49 71 48 86 81 16 23 57 05 54 +01 70 54 71 83 51 54 69 16 92 33 48 61 43 52 01 89 19 67 48 +") + +(def grid-width 20) + +(def grid-nums + (map #(Integer/parseInt %) + (remove blank? + (split grid-contents-string #"\s+")))) + +; chop into a series of rows +(pprint + (partition grid-width grid-width grid-nums))

#### 0 comments on commit `51d7b9f`

Please sign in to comment.